watkins



Aug. 31 1926.,

wmwmms KILN 1925 3 Shee'ils shee't 2 Filed May 14.

INVENTOR Y ATT'INEY Jar/w;

Aug 31, 1926 INVENTOR ATTORN EX Patented Aug. 3-1, 1926.

UNITED STATES it? it. hl'l HERMAN *WATKINEL OF HATTIEE?llllZS-fiISSIPIPI.

KILN.

Application filed May 1d, 1953 This invention relates to kilns, andcontemplates :1 novel construction and arrangement of parts wherein hotair is conveyed from a suitable heater into the kiln and 5 equallydistributed along the bottom or floor thereo't under the commodity to bedried.

The nature and advantages of the invention will be better understoodwhen the tollowing detailed description is read in connection with theaccompanying drawing, the

invention residing in the construction, combination and arrangement ofparts as claimed.

In the drawings forming part or" this ap plication, like numerals ofreference indicate similar parts in the several views, and wherein:

Figure 1 is a longitudinal horizontal sectional view through the kiln.

Figure 2 is a sectional view taken on line 2-2 01 Figure 1.

Figure 3 is a sectional view taken on line 3-3 of Figure Figure 4. is asectional view taken on line ll of Figure 2.

The kiln forming the subject matter of the present invention may beconstructed from any suitable material, and also vary in size andconfiguration without departing from the spirit of the invention, but asshown in this specific instance includes opposed side walls 10, endwalls 11, top 12, bottom 13, and a floor or partition 14 which dividesthe kiln into upper and lower compartments 15 and 16 respectively. Theupper compartment 15 is adapted to receive the commodity to be dried, astack of lumber being indicated at 17 in Figure 2, although variouscommodities can be arranged in this compartment tor the purposespecified.

Arranged in the lower compartment 16 is a plurality of heat conveyingducts or pipes, through the instrumentality of which hot air -from asuitable heater is carried into the kiln and equally distributed beneaththe commodities 17 supported upon the floor or partition 14. The heateris indicated generally at 18 and has associated therewith a suitablesmoke stack 19. Surrounding this heater is a casing 20 which defines ahot air chamber 21 having cold air inlets indicated at 22. Leading fromthis heater and communicating with the chamber 21 are pipes or ducts 23,there being preferably two of such pipes which enter the kiln as shownin Figure 1. It will be noted upon inspec- Serial No. 30,325.

tion (it this figure, that the heater 18 is arranged centrally ot thekiln, and that the pipes 23 are of angular formation and extend in oiiposite directions longitudinally of the kiln, the long branch of eachof said pipes being indicated at Associated with each of th" pipes at apoint adjacent their communication with. the heater is a damper of anysuitable character, the operating rod for which indicated at 25.

Supported by the long branch 2:1- of each ot the pipes above referredto, is a series 01" spaced transversely disposed pipes 26, each of whichcomn'iunicates with said long branch. through the instrumentality of ashort v icaliy disposed pipe 27, this eommunication being controlled bya suitable damper the operating rod for which is indicated at 28.lisingr from each transverse pipe 26 is a plurality of discharge nipplesor tubes 29, each of which is covered by a dome shaped plate 30, so thatthe heat emitted from the pipe 26 is equally distributed under the flooror partition let upon which the commodities are supported. It might herebe stated that the particular construction and relative arrangement ofthe various pi pes may be varied without departing from the spirit ofthe invention. Rising from the top of the kiln is a plurality 0t venttubes 30 :tor the escape of moisture as will be readily understood. lllanitestly, the heater is arranged extedorly of the kiln, and the heatand the cold air as it enters the chamber 2.1 is heated before it isconveyed into the kiln through the arrangement of the pipes shown anddescribed, it being understood that any number of such pipes may beemployed and the arrangement varied as desired.

While i1 is believed that from the foregoing description, the nature andadvantages oi. the invention will be readily understood, I desire tohave it known that I do not limit myself to what is herein shown anddescribed, and that such changes may be resorted to when desired as fallwithin the scope of what is claimed.

What is claimed is:--

1. A kiln including a partition dividing the latter into upper and lowercompartments, a heater arranged exteriorly of the kiln and including ahot air chamber, pipes leading from said chamber into the kiln, valvescontrolling communication between said chamber and pipes, and aplurality of Ell) heat distributing pipes supported by and communicatingwith the first mentioned pipes. V

2. A kiln including a partition dividing the latter into upper and lowercompart ments, a heater arranged exteriorly of the kiln and having a hotair chamber, pipes leading from said chamber into said kiln and arrangedlongitudinally thereof, valves controlling communication between thepipes and said chamber, a spaced transversely disposed pipe arranged inthe lower compartment and communicating With and supported by the firstmentioned pipe, Valves controlling communication between the respectivepipes and means carried by the transverse pipe for equally distributingthe heat alon the bottom of said partition for the purpose specified.

In testimony whereof I affix my signature.

HERMAN WATKINS.

